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Planar Transmission Line Medium With Negative Refractive Index Based on Complementary Omega-Like Structure

A new planar left-handed transmission line medium based on complementary omega-like structure (COLS) is proposed. A microstrip implementation of the structure is demonstrated. By etching COLS in the ground plane just below the strip, a band over which the refractive index is negative has been found....

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Published in:	IEEE microwave and wireless components letters 2008-09, Vol.18 (9), p.575-577
Main Authors:	Messiha, N.T., Ghuniem, A.M., EL-Hennawy, H.M.
Format:	Article
Language:	English
Subjects:	Applied sciences Circuit properties Complementary omega-like structure (COLS) Computer simulation Dispersions Electric, optical and optoelectronic circuits Electromagnetic radiation Electromagnetic scattering Electronics Exact sciences and technology Ground plane left-handed metamaterials Magnetic materials Materials Mathematical models Metamaterials Microstrip Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwaves Permeability Permittivity planar structure Planar transmission lines Refractive index Refractivity Transmission lines Wires
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container_title	IEEE microwave and wireless components letters
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creator	Messiha, N.T. Ghuniem, A.M. EL-Hennawy, H.M.
description	A new planar left-handed transmission line medium based on complementary omega-like structure (COLS) is proposed. A microstrip implementation of the structure is demonstrated. By etching COLS in the ground plane just below the strip, a band over which the refractive index is negative has been found. Numerical simulation of the scattering (S) parameters for the proposed structure is presented. Simulated dispersion characteristic is also shown. The structure under study has been fabricated and very good agreement has been found between measured and simulated frequency responses.
doi_str_mv	10.1109/LMWC.2008.2002446
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A microstrip implementation of the structure is demonstrated. By etching COLS in the ground plane just below the strip, a band over which the refractive index is negative has been found. Numerical simulation of the scattering (S) parameters for the proposed structure is presented. Simulated dispersion characteristic is also shown. 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subjects	Applied sciences Circuit properties Complementary omega-like structure (COLS) Computer simulation Dispersions Electric, optical and optoelectronic circuits Electromagnetic radiation Electromagnetic scattering Electronics Exact sciences and technology Ground plane left-handed metamaterials Magnetic materials Materials Mathematical models Metamaterials Microstrip Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwaves Permeability Permittivity planar structure Planar transmission lines Refractive index Refractivity Transmission lines Wires
title	Planar Transmission Line Medium With Negative Refractive Index Based on Complementary Omega-Like Structure
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